Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1993-08-18
1994-12-13
Douglas, Alan P.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
D13108, D14148
Patent
active
D03533735
REFERENCES:
patent: D238374 (1976-01-01), Davis et al.
patent: D257977 (1981-01-01), Blomberg
patent: D291801 (1989-09-01), Suzuki et al.
patent: D303383 (1989-09-01), Reichenstein
patent: D305652 (1990-01-01), Tejima
patent: D313800 (1941-01-01), Appleby
patent: D323164 (1992-01-01), Myoga
patent: D343541 (1994-02-01), Hon et al.
patent: 3183891 (1965-05-01), MacDonald
patent: 4543451 (1985-09-01), Schoen
Asch Jeffrey
Douglas Alan P.
Haken Jack E.
U.S. Philips Corporation
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